# 卓瓴 vs STD数字化平台

The clearest difference is iOS requirement: STD数字化平台 at 12.0 against 卓瓴's 16.6. On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | 卓瓴 | STD数字化平台 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 3 weeks | — |
| Size | 45 MB | 37 MB |
| Requires iOS | 16.6 | **12.0** |
| Devices | **iPhone** | — |
| Age rating | 4+ | 17+ |
| Developer | [Jiangsu Eazytec Co.,Ltd.](https://appshunter.io/developer/1073022844) | [Xiamen Standards Scientific Instrument Co.,Ltd.](https://appshunter.io/developer/1194436536) |

## What reviewers say

### 卓瓴

[App page](https://appshunter.io/ios/app/id6444602635)

**In-app purchases:** none


### STD数字化平台

[App page](https://appshunter.io/ios/app/std/id6465031219)

**In-app purchases:** none


## Frequently asked questions

### Is 卓瓴 free?

卓瓴 is free to download, with no in-app purchases.

### Is STD数字化平台 free?

STD数字化平台 is free to download, with no in-app purchases.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*